Buzz Brainard, a survivor of the Route 91 music festival shooting in Las Vegas, gives Lawrence O'Donnell a harrowing account of how he and his son hid underneath a tour bus to shield themselves from gunfire during the deadliest mass shooting in modern history. watch

Trump's economic adviser urged reporters not to look at individual aspects of the GOP tax plan. Now, we may know why: The New York Times reports Trump stands to save as much as a billion dollars from his own plan. Jared Bernstein & Joy Reid join Lawrence O'Donnell. watch

Lawrence O'Donnell looks at why Donald Trump is not convinced he can sell his tax plan to the American people. And two Republican senators are publicly casting doubt on the "Trump tax cut crusade." watch

President Trump unveiled the Republican tax plan, but immediately went off-script during his speech to share the dirty little secret of so-called tax reform when he told the crowd it was all about "massive tax cuts." watch

Trump is deleting tweets about supporting the losing Alabama Senate candidate and falsely claiming they have the votes on health care, as Republican senators contradict him. Fmr. GOP Rep. David Jolly and The New York Times' Glenn Thrush join Lawrence O'Donnell. watch

Lawrence O'Donnell says this isn't the first time a president has tried to score political points with the flag. He's joined by Afghanistan veteran, Richard Allen Smith, who says he's glad NFL players continue to take the knee. The Root's Jason Johnson also joins. watch

After tireless advocacy by protesters and Jimmy Kimmel, Republicans gave up on their latest attempt to repeal and replace Obamacare – and President Donald Trump again attacked members of his own party. watch

The Steve Bannon-backed candidate for Alabama's GOP Senate nomination has defeated the Donald Trump-backed incumbent in what might be just the first round of Bannon's battle against the GOP. Mike Murphy, Jason Johnson and Ron Klain join Lawrence O'Donnell. watch

Bill Moyers, former Press Secretary for President Lyndon Baines Johnson, speaks to Lawrence O'Donnell about Donald Trump's anger and "narcissism" and how it's spilling over to now attacking professional athlete protests. watch

Jimmy Kimmel is once again weighing in on the Republican health care effort, as GOP Sen. Susan Collins announces she opposes the bill, seemingly killing its chances of passage. John Heilemann and Julie Rovner of Kaiser Health News join Lawrence O'Donnell. watch

Lawrence O'Donnell weighs in on Trump’s attacks on professional football — including Trump's under-reported misogynistic attack on referees — and the story the Trump doesn't want in the news about Ivanka Trump and Jared Kushner. watch

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Lawrence O’Donnell brings his extraordinary background in politics and entertainment to “The Last Word with Lawrence O’Donnell,” airing weeknights on MSNBC. Drawing upon his experience as a former chief of staff on the Senate Finance Committee and as an Emmy-winning executive producer and writer of “The West Wing,” O’Donnell gives the last word and rewrites the most compelling stories of the day.